Work Problem?

Question

A jet is launched from an aircraft with the aid of its own engines and catapult. The thrust of its engines is 3.76*10^5 N. In being launched from rest it moves through a distance of 69.6 m and has a kinetic energy of 5.72*10^7 J. What is the work done on the jet by the catapult?

Answer 1

I assume you meant aircraft carrier.

The energy of the aircraft at the end of the catapult run is
equal to the work done by the engines plus the work done by the catapult over the launch distance

5.72*10^7=3.76*10^5*69.6+work done by catapult

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